Tooth-cleaning preparation



Patented Feb, 113, 11923.

No Drawing.

Applica TOOTH-CLEANING PREPARATION.

To all whom it may concern Be it known that I, CARL PFANSTIEHL, a citizen of the United States, residing at Highland Park, in the county of Lake and 5 State of Illinois, have invented a-new and useful Improvement Preparations, of which specification.

in Tooth-Cleaning the following is a The present invention relates to improvements in preparation s for cleansing teeth,

root canals, and the like, and in general for use in oral hygiene and prophylaxis.

It has been discovered in experiments under the direction of Dr. P. A. L

evene that galactonic lactone is highly efiicacious as a solvent for the organic binder trix of tartar, and, by a large number of experiments, it has been found that thls material is without action upon the enamel of the teeth and that it exercises a stimulating action upon the gum that other members compounds, the lactones of and particularly the l acids, possess the same properties.

s. l have discovered of tle same class of the sugar acids actones of the hexonic Other suitable compounds of this class are, for example, mannomc lactone and gluconic lactone.

I have discovered are incorporated in compositions that when these lactones pastes, powders and like of the character hitherto known for general use as tooth-cleaning preparations, the 'lactone rapidly loses its activity and in' many cases forms hard cement-like masses. fects take place even ployed as such in the These deleterious efwhen no water is em vehicle in the case of pastes and they likewise occur in the case of powders containing the customary abradents and flavoring constituents, with or without saponaceous constitue In accordance with nts.

the present invention a substantially permanently active preparation containing the by intimately admix fillers which have been substantially com-- lactone may be prepared ing the lactone with pletely dehydrated and in the case of a paste, employing a vehicle which is substantially anhydrous.

amples illustrate the Precipitated chalk,

The following expresent invention.

which normally contains up to 5% of moisture, is dried in a vacuum oven until su bstantially anhydrous.

tion filed September 29, 1921. Serial'No. 504,144.

arsen Suitable flavoring ubstances, eucalyptus, oil of Wintergreen, thymol, saccharine, etc. are incorporated 10% of such as oil of such, or may be formed into a paste b means of an anhydrous massing fiuid, prete1ably comprising anhydrous glycerol (containing not more than 2% moisture) with or Without absolute alcohol. Glycerol glycerol and alcohol A small proportion, say 1 to 2% of gelatine may be dissolved in the vehicle, if desired.

If desired, other fillers may be substituted part for the halk. Thus tricalcium phosphate (previously dehydrat ed) or other inert substance such as kieselguhr may be substituted in the filler in whole or in part for chalk, or soap powder or saponin may be added. oap powder, which ordinarily contains 10% or more moisture,

to substantially complete freedom from proportion of the vehicle may likewise be reduced. The proportion of lactone to total solids is preferably between 2 and The term anhydrous, as used herein, indicates the absence of water in a condition tially anhydrous filler comprising precipitated chalk, anhydrous glycerine, absolute alcohol and galactonic lactone.

5. In a tooth cleaning compound, a substantially ler and galactonie anhydrous fil lactone to the amount of 2 to 10% of the total solids 6. In a tooth cleaning paste, a substantially anhydrous filler, a substantially anvehicle and galactonic lachydrous massing total tone to the amount of 2 to 10% of the solids.

7'. In a tooth cleaning paste, a substantially anhydrous filler, a substantially anhydrous massing vehicle and a lactone of a sugar acid to the amount of 2 to 10% of the total solids. 4

. CARL PFANSTIEHL. 

